package main

import (
	"strings"
	"fmt"
)

func main() {
	//s := " Hello 世界! "
	//ts := strings.TrimLeft(s, "Helo")
	//fmt.Printf("%q\n", ts) // "世界! "

	s := " Hello 世界! "
	ts := strings.Trim(s, " ")
	fmt.Printf("%q\n", ts) // "世界"
}
